Mine brattice



Aug. 3 1926.

` J.- F. BARNETT MINE BRATTLGE 1925 2 snets-sheet 1 Filed May e @Hor 1141214 J. Fi lBARNETT MINE BRATTICE Aug. 3

Filed May 6, 1925, 2 Sheets-Sheet 2 atrozneq Patented Aug. 3, 1926. l i

UNITED STATES JOEL FRANK BAR/NET',L,y OF LVA, KENTUCKY.

MINE BRATTICE.

Application filed May 6, 1925. Serial No. 28,279.

This invention relates to mine brattices, and has ior one ot' its objects to improve and simplify the general constructionof devices or this character and to provide one which shall be adapted tov be readily and firmly secured in place and which shall be adapted for use in shafts and galleries of different widths.

With the above and other objects in View the invention consists or the construction, combination and arrangement of parts hereina'fter fully described and claimed, and illustrated in the accompanying drawings, wherein:

Figure 1 is a view illustrating the application ot' the brattice;

Figure 2 is a horizontal sectional View of the brattice, the Vsection being taken on the plane indicated by the line 2--2 of Figure 1 Figure 3 is a detail sectional view on an enlarged scale taken on the plane indicated by the line 3 3 of Figure 1;

Figure 4 is a horizontal sectional view of the brattice taken on the plane indicated by the line 1 -4 of Figure 1;

Figure 5 is a vertical sectional view of the brattice taken on the plane indicated by the line 5-5 of Figure 1;

Figures 6 and 7 are detail sectional views taken respectively on the planes indicated by the lines 6-6 .and 7--7 of Figure 1;

i Figure 8 is a detail sectional view on an enlarged scale taken on the line 8-8 of Figure 1;

Figure 9 is a view similar to Figure 1 with the slidable sections of the brattice opened; and

Figure 10 is a detail sectional view on an enlarged scale taken on the line 10-10 of Figure 9.

Fig. 11 is a detail perspective view taken on line 6-6 of Fig. 1 and corresponds to Fig. 6.

Corresponding and like parts are referred to in the following description and designated in the several views of the accompanying drawings, by similar reference characters.

In the drawings 1 designates the top,

2 the bottom and 8 the side walls of'a mine shaft or gallery.

The brattice comprises a central section 4, end sections 5 and intermediate sections 6. These parts are made of sheet metal and are slidably connected together by slides 7 and lower ends of said parts.

guides 8 which extend transversely of said parte and are located near the upper and The slides 7 and guides 8 are secured in place by rivets 9, and the former have their upper and lower edges offset from the parts to which they are secured and snugly fitted Vin grooves 10 in the guides 8. v The guides 8 contact with the sections 1, 5 and 6 and the sections 5 `and 6 are provided with angular extensions 11 entering theguides 8. Thesnug lit of the slides 7 in the guides 8, the contact between the uides 8 and the sections 5 and 6, and the contact between the angular extensions 11 and the guides 8, establishsubstantially air tight connections between the upper and k10i-ver edges or the sections 4c,A 5 and 6 Between the slides 7 and guides 8 the sections 4;, 5 and 6 are provided with angular edges 12 which interlock when the brattice is erected to establish a substantially air tight connection between those portions of the sections situated intermediate the slides 7 and guides 8.

The outer vertical edges of the sections 5 are provided with reinforcing beads 13, and these sections have secured thereto -handles 14:.

members 18 of the loops 15 by rivets 20, and

anchors 21 provided with prongs 22 are slidably mounted upon said members and adapted to be secured in active or inactive position by set screws 23.

l/Vhen the brattice is in use the upper and v lower edges of thesections 4, 5 and 6 contact with the top 1 and bottom 2 of the l shaft or gailery, the outer vertical edges of the sections 5 are embedded in grooves 3a in the sides 3, and the anchors 21 are embedded in the top 1 and bottom 2. If desired concrete may be applied to the top 1, bottom 2 and sides 3 in contact with the Vbrattice so as to preventy air passing by the same or aseal may be effected by secur, ing ak wire netting over the entire surface oi the bratticev and applying cement to the netting. ot metal. As the brattice is collapsible, and as the anchors 21 may be readily moved into and .secured in active position, the de-v fill parts of `the brattice are made vice may be readily and quickly erected. Theanchors 2l prevent the casual displacement of the brattice.

From the foregoing description, connection With the accompanying drawings, the advantages of the construction of the brattice Will be readily apparent to those skilled in the art to `Which it appertains. Vihi'le I have described and shown the device which l now consider to be the best e'mlnnliment of the invention, I desire to have it understoodthat such changes maybe made when desired as are Within the scope ot the invention as claimed.

That is claimed '1s:-1

1. A mine bra'ttice comprising a section, vertical members secured to the section, anchors slidably mounted on said members, anchor securing elements, and other sections connected to saidirst named section.

2L A mine brattice comprising vertical members, anchors slidably connected to said members, and 'anchor securing elements.

3. A `mine bra-ttice having reinforcing loops seci'red thereto, anchors slidably connected to the loops, and anchor securing ele- IDBIIS'.-

taken in A 4. A mine brattice comprising sections, guides carried by certain of the sections, slides carried by certain of the sections and itting in said guides, the sections carrying the slides having entensions tting in the guides, and said sections having angular edges.

A mine brattice comprising a vertical section, means adapted to secure the section to the top' and bottom Walls of a m'ine shaft or gallery, and otherr vertical sections connected to said first section for horizontal adjustment with respect thereto and extend- -in'g therefrom to the side Walls of the mine shaftv orgallery. n Y

G. vA mine brattice comprising a section, anchors connected to the section for adjustment inwardly and outwardly With re- Aspcct to' opposite edges thereof, and 'other sections connected to the first named section for` adjustment with respect thereto in a direction' at right angles to the direction oit adjustment o'the anchors.

in testimony whereof I aiiiX myslgnature. e Y e l J. FRANKBARNETT; 

